change strapi example to latest one - fixes #51332 (#51334)
fixes #51332
### What?
Changed the link to the latest official Strapi example with Next.js (+ App Router), Tailwind and TypeScript.
### Why?
The current example will be archived. See related blog post: https://strapi.io/blog/introducing-the-new-strapi-starter-with-nextjs13-tailwind-and-typescript
> We'd also like to address what this means for older Strapi starters. Due to limited bandwidth, we've decided to support only this new Strapi Starter officially, and all other starters will be archived.
### How?
.